rtc: pm8xxx: drop unused pm8018 compatible

The PM8018 compatible is always used with PM8921 fallback, so PM8018
compatible can be safely removed from device ID table

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20220928-mdm9615-dt-schema-fixes-v5-2-bbb120c6766a@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-pm8xxx.c

@@ -461,7 +461,6 @@ static const struct pm8xxx_rtc_regs pmk8350_regs = {
  */
 static const struct of_device_id pm8xxx_id_table[] = {
 	{ .compatible = "qcom,pm8921-rtc", .data = &pm8921_regs },
-	{ .compatible = "qcom,pm8018-rtc", .data = &pm8921_regs },
 	{ .compatible = "qcom,pm8058-rtc", .data = &pm8058_regs },
 	{ .compatible = "qcom,pm8941-rtc", .data = &pm8941_regs },
 	{ .compatible = "qcom,pmk8350-rtc", .data = &pmk8350_regs },